The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 22, 1993
Filed:
Apr. 15, 1992
Applicant:
Inventors:
Assignee:
Th. Goldschmidt AG, Essen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
2606 / ;
Abstract
A method for the preparation of dialkylmagnesium compounds is disclosed, wherein magnesium hydride is reacted with an olefin in the presence of a halide of sub-groups IV to VIII of the Periodic Table and in the presence of an ether as reaction medium at a temperature of about between 1 to 300 bar and in a temperature range of about 0.degree. to 200.degree. C. According to the disclosed invention, the magnesium hydride is activated by grinding to a particle size of .ltoreq.10 .mu.m and the method is carried out in the absence of complex catalysts. The grinding of the magnesium hydride takes place prior to the reaction with the olefin, but may also be conducted during the reaction.